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GROUP BY to combine/concat a column [duplicate]
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edited Apr 11 '14 at 5:46
SO User
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JS strings “+” vs concat method [duplicate]
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Baum mit Augen♦
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answered Apr 20 '13 at 19:05
laktaklakt...
print memory address of Python variable [duplicate]
... to use: to convert it to hex:
hex(id(variable_here))
For instance:
x = 4
print hex(id(x))
Gave me:
0x9cf10c
Which is what you want, right?
(Fun fact, binding two variables to the same int may result in the same memory address being used.)
Try:
x = 4
y = 4
w = 9999
v = 9999
a = 12345678
b ...
ModelSerializer using model property
...complex models! EDIT: At least, this is true for djangorestframework==2.3.14.
– e.thompsy
Feb 4 '15 at 18:54
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How to fix UITableView separator on iOS 7? [duplicate]
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488
UITableView has a property separatorInset. You can use that to set the insets of the table vie...
ImportError: No module named dateutil.parser
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edited Apr 30 '14 at 9:33
Stefan van den Akker
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php each与list的用法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... $tmp[0],'~',$tmp[1],'<br />';
}
/*
返回
0~你
1~若
2~安
3~好
4~便
5~是
6~晴
7~天
*/
?>
2.list的用法
先看api是怎么说的：像 array() 一样，这不是真正的函数，而是语言结构。list()用一步操作给一组变量进行赋值。
来看一个例子：...
configure: error: Unable to find gd.h anywhere under /usr/local/gd - ...
...gd库可解决
3.重新安装gd库，在安装时出现：
configure.ac:64: error: possibly undefined macro: AM_ICONV
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation. 错误，在./configure 后加上--enable-m4_pattern_allow 重新编译即...
LINUX下用PHPIZE安装PHP GD扩展 - PHP - 清泛IT论坛，有思想、有深度
本帖最后由 zqp2013 于 2015-4-26 14:39 编辑
环境：LNMP in centOS 6.4。linux下PHP的扩展可以用phpize的方法，比较简单地进行启用。以下以PHP-GD2 库安装为例子。sudo yum install php-gd2 png jpeg freetype //YUM安装扩展cd /app/php-5.4.13...
nginx启用gzip压缩，大大降低网站流量 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...zip_config1、建立一个 gzip conf ，配置内容如下： gzip_buffers 4 16k: 压缩时的缓存区大小, 可以理解为工作车间的大小 gzip_static on: 对静态文件进行gzip压缩, 是用来配合gzip 1、建立一个 gzip.conf ，配置内容如下：
#gzip_buffers 4 16k: 压...